John kieby



J. KIREBY, J1.

2 Sheets-Sheet 1.

(N Model.)

LAMP.

Flab.

Patented Dec,

IHI

FIG-.1,

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(Nummer.) 2 sheets-sheet 2.

J. KIRBY, Jr.

v LAMP,

No.s54,91o. Patenneanwm, 18,86.

FIG-.10.

. 9 shows one of the notched rods and a portion -similar section through the central frame and UNITED STATES PATENT Orrrcfn.

JOHN KIRBY, JR., -OF DAYTON, OHIO, ASSIGNOR TO THE DAYTON MANUFACTURING COMPANY.

LAMP.

SPECIFICATION forming part of Letters Patent No. 354,910, dated December 28, 1886.

Aypncniion filed February 19, 18st. serial No. 192,508. (No model.)

To @ZZ whom it may concern:A

Be it known that I, JOHN KIRBY, J r., a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Lamps; and I do hereby declare that the following is a full, clear, and exact description of the invention. l

My invention relates to car-lamps such as are suspended from the roofs of railroad-cars, said lamps being composedin part of, a rigid central frame and shade-holders for supporting shades above the burners, said shade-holders being independent of and not affected byy any movement ofthe oil-reservoir, and said lamps having downwardly-detachable resorvoirs or oil-founts.

My said invention will be hereinafter fully described' with reference to the accompanying drawings, in Whichl Figure lis a side elevation of a lamp embodying my improvements, the various parts of the same being seen in their normal or operative positions. Fig. 2 is asimilar elevation of the lower portion of said lamp, the oilfount being shown separated, but not bodily detached from the central frame, and one of the chimneys being removed from the burner and hung upon the appropriate hook. Fig. 3 is a-perspeetive view of the gravitating bufber detached from the lamp. Fig. 4t is a greatlyenlarged longitudinal section through one of the anti-rattling springs and its accessories. Fig. 5 is an enlarged vertical section through the locking-ring and its accessories, said ring being shown engaged with one ofthe notched rods of the' central frame, and a portion ofthe oil-fount and its surrounding shell or jacket being broken away. Fig. 6 is a horizontal section of the central frame, taken directly above the anti-rattling springs. Fig.v 7 is an enlarged axial section through the shade-holding device and its accessories. Fig. 8 is a the oil-fount, the latter being lowered from the former, but not detached therefrom. Fig.

of the central frame. Fig. 10 is a plan ofthe annular lock-case, the cap-plate of the-'same being detached therefrom. Fig. 11 is a plan of said detached cap-plate. Fig. 12 is a perspective view of the lock-case, the cap-plate being removed therefrom and the oil-fount be` ing separated from the central frame. Fig.

A13 is an enlarged plan, showing one of the peripheral projections of the lock-ring engaged with one of the notched rods, the latter being sectioned.

A represents the central frame, composed of a ring ror annulus, which is preferably angular in transverse section, as more clearly shown in Fig. 8, and is provided with a series of outwardly-projecting screw-threaded shanks, a, for the attachment of hangers B, wherewith said frame is securely suspended from the ceiling of a steamboat or car ror other support. The horizontal web or ange of this ring is provided with a series of slots, C, (seen in Fig.'6,) which slots are furnished 'with plate-springs c, the free iends of which latter bear upon the oil-fount or to a jacket or shell surrounding the same, for a purposethat will presently appear. Furthermore, this ring or central frame has a hook or equivalent supporting device, D, for each burner, a pair of such hooks being shown in the drawings, although the invention is not limited to any precise nu mber. Depending rigidly from this frame is a series of rods, E, each of which has an upper notchor shoulder, e, and a lower notch or shoulder, e. I preferably show four of these rods, but do not limit myself to any pref that enter bearers g of the case and thereby retain said cap-plate in its Aproper horizontal position. Said plate serves to keep the ring F down to its proper seat in the case G, but it is not an essential element, as it may be omitted and other means vemployed to accomplish said result. The plateis more clearly seen in IOO . Fig. 11. The bottom plate of this lock-case is pierced at J, which perforations are in line wi h the openings 'L' of the cap I, so as to permit a ready passage of the notched rods, as seen in Fig. 5.

Ring F is preserved in its normal or locked positionby a suitable spring or springs, four of such devices being seen in Figs. 10 and 12. These springs K are attached to pins k, projecting therefrom within the lock-case, the free ends of said springs being constantly in contact with suitable bearings, f', of said ring F, which latter is turned so as to disengage its projections f from the notched rods E by means of a knob or handle, L. This knob is chambered or bored out at Z to admit a screw, M, around which latter is coiled a spiral spring, m, that -forces said knob against lthe rim of the lock-case. Screw M is preferably tapped into a special projection, m', of the ring F, as seen in Fig. 10. This screw or stem traverses a horizontal slot, n, of a swell, N, of the lockcase, said swell having a shoulder, n', for a purpose that will presently appear. Swell N, shoulder n', movable knob L, and spring m' may, however, be omitted without departing from the invention herein claimed. Springs K may also be omitted, which would necessitate the operator to press against the knob L or stem M to engage the ring F with the notched rods E. I prefer the use of the springs, which use makes such engagement automatic. Depending from the lock-case is a shell or jacket, O, from which project arms P P, that support burners p p of any. approved construction.

Shell O affords an air-space,'Q, between it and the reservoir or oilfount R, the latter having at bottom discharge-pipes r l", (seen only in Fig. 8,) the details of these devices O, P P', pp', and R r r being more fully explained in my Patent No. 274,003. Reservoir R may have tubes S fitted within it for the .passage of the rods E, as seen in Fig. 5, or these rods can traverse channels or grooves in said reservoir, as indicated by the dotted lines sin Fig. 8.

T is a drip pan or cup secured to the jacket O by a Screw, t, engaging with a nut, t', which latter is soldered into the bottom of fount R. The upper end of this fount has a ,filling-nozzle, U, provided with a funnel, u, and screwthreaded plug u', the detachment of which latter enables the ready charging of said fount with oil or other burning-fluid.

V V are the chimneys, and W Wthe shades or globes, ofthe burncrspp, said shades being suspended from domes w w', as seen in my Pateut No. 314,251. Each dome is furnished with a gravitating buffer, the details of which are shown in Figs. 3 and 7, wherein X represents a cylindrical weight adapted to play freely within the dome, said weight having anaxial bore, m. Y are groovcs made longitudinally of the outer periphery of this weight, which grooves have springs y secured therein, the free ends of said springs being adapted to bear against the interior of the dome,and thereby prevent rattling. Furthermore, thelower end of this weight'has a concave cushion, Z, applied thereto, which latter is usually made of sheet metal, and is properly slotted at z to cause it to have a yielding or spring action. Cushion Z rests upon the lamp-chimney, and has a central opening, z', to allow the products of combustion to escape through the dome.

Vhen my lamp is in its normal position, as seen in Figs. 1 and 5, the upper surface of lockcase G is in close contact with the under side of central frame, A, the springs c giving or bending sufficiently topermit thisjunction to take place, and yet preventing any rattling of said members A G by the vibrations of the boat or car. The case- G, together with the attached shell() and its adjuncts, are securely held in this normal or elevated position by the engagement of the various peripheral projectionsj'of the lockingring F with the upper set of notches, e, of the rods E, said ring being maintained in this locked condition by the stress of springs K, as will be readily understood by reference to Fig. 10. Again, when the ring is in this vlocked position, spring m causes the knob Ltosnap in behind the shoulder a', andthus prevents any accidental movemerit of said ring, which latter, together with the rods and all ofthe other coupling devices, springs, Ste., is concealed from sight. Fur thermore, in this coupled condition of the lamp the upper ends of the chimneys V V are housed within the appropriate domes w w', and the gravitating buffers rest upon said chimneys, as clearly seen in Fig. 7. Reference to this illustration shows that the yielding plate Z rests directly upon the chimney, being held in this position by the weight X. Consequently the chimney is coniined within the gallery of the burner with a yielding or elastic pressure ICO that prevents breakage of said chimneys, no

matter how violent the vibrationof the car maybe. This gravitating and yielding buffer also prevents the ascent of air around the sides 'of the chimney, which side currents cause the lamp to smoke and frequently to be extinguished. When it is desired to trim the wicks or examine the burners, the knob L must first be grasped and then pulled outwardly, so as to disengage it Ifrom behind the shoulder u', after which act said knob is swung around to the position indicated by the dotted lines in Fig. 10, the result of this movement being to revolve the ring F far enough `to liberate its projectionsf from the upper set of notches, e, of rods E. The lamp is then lowered until said projections are in line with the other set of notches, e', when knob L is liberated and the springs K are again allowedto exert their in the position seen in Figs. 2 and 8, thereby IIO affording ample room for trimming the wicks, preparatory to which operation the chimney is detached from the'burner and hung upon the hook D, as shown at V in Fig. 2, the upper end of the chimney resting againstthe interior of dome w. This arrangement will be especially advantageous with those lamps whose necks or domes are too small to admit the chimneys being raised high enough to be detached from the burners without taking down the entire reservoir or oil-fount. My chimneys can be thus suspended from their hooks when the reservoir requires filling, to accomplish which act the knob L is again disengaged from behind the shoulder a', and the ring F is turned to unlock the shell or jacket O from the notched rods. This shell is then lowered bodily, and the plug a is unscrewed from the nozzle U, and the oil is poured directly into the funnel u, and flows from thence into the reservoir R, any yspillage being collected in the drip-cups T. Plug a is then screwed into the funnel, the pointed ends of Y rods E are inserted in' the openings i of cap- 25 plate I, so as to guide said rods into the'tubes S, and the lamp is at once elevated and closely coupled to the central frame, A, as previously described.

The above is a description 'of the preferred construction of my lamp; but in some cases it may be found desirable to locate the lockingring F within the central frame, A, and have the notched rods E project vertically from the reservoir R or jacket O. Again, in describing this preferred formof my invention I have alluded to certain devices seen in Patents Nos. 269,587, 274,003, 231,633, and 314,251, and on this account said devices are disclaimed from the present application. I also expressly disclaim the broad idea of interposing springs betgween coupled members to prevent rattling of the same, as this is known to be an old mechanical expedient. I further disclaim the broad idea of a lamp that is capable of being bodily detached from thesupporting-frame, as such separable lamps with various forms of coupling devices are seen in a number of patents. I further disclaim the broad idea of a yielding holder applied to the top of a lampchimney for the purpose of retaining the latter in its proper place, as such holders are seen in several patents. Finally, I disclaim the devices shown and described in the following patents, towit: Nos. 64,719, 189,063, 214,470,

244,407, 274,326, 307,044, 312,202, and 329,718.,

I claim- 1. In a car-lamphaving a'central frame andA 'that engages with either set of said notches and thereby couples said reservoir to said frame at different elevations, the reservoir be- .ing also provided with arms or branch-es that vplate I, the reservoir being provided with suitable passages forthe rods E and having arms or branches that carry the burners, substantially as herein described. j

3. In a lamp, the central frame, A, provided with rods E, having notches e, an oilreservoir having arms or branches which.

carry the burners, and passages for said rods E, in combination with a locking device to en= gage with said notches, composed of case G, having apertures J, swell N, and slot n, ring F, provided with projections f, stem M, knob L, and spring m, plate I, or its equivalent, springs K, pins k, and bearings f', the whole to operate substantially as herein described.

4. The combination, in a lamp, of a central frame, A, having a series of pendent rods, E,

provided with upper notches, e, and lower notches, e', and a downward bodily-detachable oil-reservoir, R, provided with a lockingrring,F,having peripheral proj ections f,and an operating-knob, L, a spring or springs being employed for restoring said ring to its normal I CC position, and said reservoir being furnished with branches or arms P P', which support the burners p p', as herein described.

5. The combination, in a lamp, of central Vframe, A, having a series of pendent rods, E,

notched at e e', and a downward bodily-detachable oil-reservoir, R, provided with arms P P, burnerspp, and a locking-ring, F, having peripheral projectionsf, a knob, L Z, and" a retracting-spring, K, the stem M, spring m,

swell N, slot a, and shoulder a', for the purpose described.

6. In a lamp, the combination of a frame, A, slotted, as at C, plate-springs c, and a de 'tachable reservoir, said springs arranged with their free ends interposed between said frame and reservoir, whereby rattling of these parts is prevented, substantially as herein described.

`7. In a lamp having a detachable reservoir and shades held in holders rigidly secured` above the burners, the combination of the `frame A, to which frame or attachment thereto are secured chimney-supports, as D, whereby the lower end of the chimney lmay be supported on said frame when the reservoir and burners are disconnected fromthe frame, substantially as herein described.

8. The combination, in a lamp, of domew and inclosed gravi'tating buffer X, having a' central passage,.x, and :Lt itslowerend avyieldbination with dome w or w and their suping plate, Z, which plate is pierced at z and porting bracket or brackets, for the purpose xo rests upon the chimney located Within said described. i dome, for the pur ose described. I

9. A lampchiuiey bner consisting of the *JOHN KIRBY JR' channeled ,gravitatin'g Weight X x and slotted .yielding plate Z z z', the sides of said weight being grooved at Y to admit springs y, in com- Witnesses:

G. U. RAYMOND, G. W. HARTSELL. 

